Dockerfile.extproc

# Build the Rust library for the candle-binding module
FROM rust:1.85 as rust-builder

WORKDIR /app
COPY candle-binding/Cargo.toml candle-binding/
COPY candle-binding/src/ candle-binding/src/

WORKDIR /app/candle-binding
RUN cargo build --release

# Build the Go application
FROM golang:1.24 as go-builder

WORKDIR /app
COPY semantic_router/go.mod semantic_router/go.sum* ./

# Create the directory for the candle-binding module
RUN mkdir /app/candle-binding
# Copy only the necessary Go files and go.mod for the candle-binding module
COPY candle-binding/go.mod candle-binding/semantic_router.go /app/candle-binding/

COPY semantic_router/ ./semantic_router/

# Copy the .so file from the rust-builder for CGO
COPY --from=rust-builder /app/candle-binding/target/release/libcandle_semantic_router.so /app/lib/
# Set environment for CGO to find the library
ENV CGO_LDFLAGS="-L/app/lib"
ENV CGO_ENABLED=1

RUN cd /app/semantic_router && go build -o extproc-server ./cmd/main.go

# Final stage: copy the binary and the shared library
FROM quay.io/centos/centos:stream9

WORKDIR /app

COPY --from=go-builder /app/semantic_router/extproc-server /app/
COPY --from=go-builder /app/lib/libcandle_semantic_router.so /app/lib/
COPY config/config.yaml /app/config/

ENV LD_LIBRARY_PATH=/app/lib

EXPOSE 50051

CMD ["/app/extproc-server", "--config", "/app/config/config.yaml"]